2026-04-10Views：
There are several main differences between oil-injected screw air compressors and oil-free screw air compressors:
lubrication method: The oil-injected screw compressor needs to lubricate the screw continuously during operation, so the lubricating oil and filter element need to be replaced regularly. The oil-free screw compressor uses a non-lubricating method and does not require any additional lubricating oil.
Maintenance cost: Since the oil-injected screw compressor needs to replace the lubricating oil and filter element regularly, its maintenance cost is relatively high. On the contrary, the maintenance cost of an oil-free screw compressor is lower because it does not require additional lubricating oil.
Working principle: The oil-injected screw compressor compresses the air through the high-speed rotating screw, and injects lubricating oil into the screw gap through the fuel injection pump to reduce friction and protect the screw surface from corrosion. The oil-free screw compressor uses the high-speed rotation of the two screws to compress and discharge the air without adding additional lubricating oil.
Flexibility of use: Since there is no need to add additional lubricating oil, the use of oil-free screw compressors in various occasions is more flexible.
Energy efficiency: Due to the use of oil injection lubrication, the energy efficiency of the oil-injected screw compressor may be higher than that of the oil-free screw compressor, because the lubricating oil can form an oil film between the rotors, which has the effects of lubrication and cooling, and can increase air tightness., Improve the volumetric efficiency of the air compressor.
In general, oil-injected screw air compressors and oil-free screw air compressors have their own characteristics and advantages. The choice of which type of air compressor depends on the specific application requirements and environmental conditions. For example, in the case of high gas purity requirements, such as food, pharmaceutical and other industries, oil-free screw compressors may be more suitable; and in some of the higher energy efficiency requirements, oil-injected screw compressors may be more advantages.
The service interval for air compressors usually depends on several factors, including the type of air compressor, the environment in which it is used, the workload, and the manufacturer's recommendations. In general, most air compressors require regular maintenance to ensure their performance, efficiency and longevity.
The ppm of air oil content represents the trace concentration of oil in the air, I .e. the amount of oil per million parts of air. Ppm is the abbreviation of English part per million, which means one part per million. Specifically, if the oil content in the air is X ppm, then
In general, the air pressure of the factory air compressor is generally 0.8Mpa, also known as 8kg pressure, and the specific value can be adjusted according to user needs. The unit of air pressure is "Pascal" (Pa), usually "bar" or "kg & rd"
在食品行业中，压缩空气的质量标准对于确保食品安全至关重要。以下是对食品压缩空气等级及标准的重新组织语言改写，力求用词严谨：一、食品压缩空气等级概述食品压缩空气等级通常
The first maintenance of air compressor is a key link in the whole life cycle management of equipment, which plays an important role in ensuring the stability of operation and prolonging the service life. According to the general standards of the industry and the operating characteristics of the equipment, we are now 500.
When choosing an air compressor, frequency conversion air compressor and power frequency air compressor are two common types. They have their own advantages and disadvantages and are suitable for different work scenarios and needs. Taking the water-lubricated screw air compressor products produced by the Glanklin Group as an example, we can discuss in depth how
Oil-free air compressors are sold well in China, that is, granklin water-lubricated oil-free air compressors, what kind of enterprises need oil-free air compressors? Food, drinks, medical, laboratory, water treatment, biopharmaceutical, environmental protection, printing, subway and other industry scenarios need to use oil-free air compressors.
The compressed air discharged from an ordinary air compressor will come with impurities such as dust, moisture and oil, and cannot be directly used in a thousand-level dust-free scene. By installing a multi-stage purification device and matching the suitable air compressor type, clean air that meets the requirements can be obtained.
Air compressors without oil and water lubrication are not lubricated with lubricating oil, so they are especially environmentally friendly and will not cause pollution to the environment. In addition, under the general environment of national policies, the government, on the one hand, advocates energy conservation and emission reduction by means of incentives, subsidies and other incentives to encourage users to reduce emissions.
Technical Suggestions on the Selection of Air Compressor in Hardware Processing In the field of hardware processing, the loose clamping action of pneumatic fixture is the key link that affects the production rhythm. According to the working condition of "loosening once in 15 seconds", the selection of air compressor needs to comprehensively evaluate the gas consumption and pressure.
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